NI-9265 Getting Started

NI-9265 Nomenclature

In this article, the NI-9265 with screw terminal and NI-9265 with spring terminal are referred to inclusively as the NI-9265.

NI-9265 Block Diagram

Each AO channel has a digital-to-analog converter (DAC) that produces a current signal. Each channel also has overvoltage and short-circuit protection.

Figure 1. NI-9265 Circuitry

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Connecting the NI-9265

The NI-9265 provides connections for four analog output channels.

Figure 2. NI-9265 Pinout

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Note You must use 2-wire ferrules to create a secure connection when connecting more than one wire to a single terminal on the NI-9265.

NI-9265 Signals

The NI-9265 has four analog output channels, AO. Each channel has a common terminal, COM, that is internally connected to the isolated ground reference of the module. The NI-9265 also has a terminal for an external power supply, Vsup, and an external power supply common terminal, Power Supply COM.

Load Connections

You can connect a load to each channel of the NI 9265.


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Connecting an External Power Supply

You must connect an external power supply to the NI-9265. This power supply provides the current for the devices you connect to the module.

When the module powers on, the channels output the startup current.

High-Vibration Application Connections

If your application is subject to high vibration, NI recommends that you follow these guidelines to protect connections to the NI-9265:
  • Use ferrules to terminate wires to the detachable connector.
  • Use the NI-9927 backshell kit with the NI-9265 with screw terminal or the NI-9981 backshell kit with the NI-9265 with spring terminal.

Conformal Coating

The NI-9265 is available with conformal coating for additional protection in corrosive and condensing environments, including environments with molds and dust.

In addition to the environmental specifications listed in the NI-9265 Safety, Environmental, and Regulatory Information, the NI-9265 with conformal coating meets the following specification for the device temperature range. To meet this specification, you must follow the appropriate setup requirements for condensing environments. Refer to Conformal Coating and NI RIO Products for more information about conformal coating and the setup requirements for condensing environments.

Operating humidity (IEC 60068-2-30 Test Db) 80 to 100% RH, condensing